#include<stdio.h>
int main(){
	printf("      *      \n");
	printf("     * *     \n");
	printf("    * * *    \n");
	printf("   * * * *   \n");
	printf("  * * * * *  \n");
	printf(" * * * * * * \n");
	printf("  * * * * *  \n");
	printf("   * * * *   \n");
	printf("    * * *    \n");
	printf("     * *     \n");
	printf("      *      \n");
	
	return 0;
} 
